VERY annoying as the content was useful and carefully laid out in my humble opinion, and I had spent some time on them. All of them had 100% completion too. My oldest lense is within the top 10,000 (although that one was was not taken down) and all of them were of the same basic style and quality.
Anyway, I am obviously not going to give them anything again. You just don't know why and when it might be unpublished.